Samsung fans interested in purchasing the Galaxy S4 smartphone can now pre-order the device through Walmart.

A leaked internal memo from the company revealed that the retailer would begin offering pre-orders on the device as early as today, according to a report from PhoneArena.

Walmart has not announced pre-order instructions yet. Other retailers such as Staples will begin allowing customers to pre-order the device today as well. Major carriers such as AT&T, T-Mobile and U.S. Cellular will also start reserves on the Galaxy S4.

The Walmart document calls the Galaxy S4 "the biggest phone launch for this year in wireless," and offers other details about the pre-order process.

The Galaxy S4 will launch in Korea packing a 1.8GHz Exynos octa-core processor.

The device will be released in Samsung's home country with the company's new and super powerful chip, according to the FCC. The Korean version will actually sport a more powerful CPU than most other nations, as the chip on the international version only clocks in at 1.6GHz.

The Korean version will also support various bands of LTE. This has angered some Samsung fans, who feel every market should have the opportunity to purchase this faster version. The device will launch in other nations with a Qualcomm quad-core chip. Korea certainly has a clear advantage.

Around three quarters of the first 10 million Galaxy S4 models will come with a Qualcomm Snapdragon 600 CPU instead of the company's own Exynos 5 Octa processor.

The System LSI division is having issues ironing out the performance and design issues before it could mass produce the device to satisfy the overwhelming demand. Samsung plans to ship the device to as many markets as possible and using the Exynos 5 Octa in most models would slow production down significantly, according to the Korean site ETNews.